Book stand



FIG. 1 is a front, perspective view of the book stand of the invention;

FIG. 2 is a left side view of the book stand of FIG. 1;

FIG. 3 is a right side view of the window insert of FIG. 1;

FIG. 4 is a top view of the book stand of FIG. 1;

FIG. 5 is a bottom view of the book stand of FIG. 1;

FIG. 6 is a front view of the book stand of the invention; and,

FIG. 7 is a back view of the book stand of the invention. 

The ornamental design for a book stand, as shown and described. 